diff options
Diffstat (limited to 'src/lib/math/numbertheory/powm_fw.cpp')
| -rw-r--r-- | src/lib/math/numbertheory/powm_fw.cpp | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/src/lib/math/numbertheory/powm_fw.cpp b/src/lib/math/numbertheory/powm_fw.cpp index 14474104e..02e9bbe83 100644 --- a/src/lib/math/numbertheory/powm_fw.cpp +++ b/src/lib/math/numbertheory/powm_fw.cpp @@ -16,7 +16,7 @@ namespace Botan { */ void Fixed_Window_Exponentiator::set_exponent(const BigInt& e) { - exp = e; + m_exp = e; } /* @@ -24,14 +24,14 @@ void Fixed_Window_Exponentiator::set_exponent(const BigInt& e) */ void Fixed_Window_Exponentiator::set_base(const BigInt& base) { - window_bits = Power_Mod::window_bits(exp.bits(), base.bits(), hints); + m_window_bits = Power_Mod::window_bits(m_exp.bits(), base.bits(), m_hints); - g.resize((1 << window_bits)); - g[0] = 1; - g[1] = base; + m_g.resize((1 << m_window_bits)); + m_g[0] = 1; + m_g[1] = base; - for(size_t i = 2; i != g.size(); ++i) - g[i] = reducer.multiply(g[i-1], g[0]); + for(size_t i = 2; i != m_g.size(); ++i) + m_g[i] = m_reducer.multiply(m_g[i-1], m_g[0]); } /* @@ -39,18 +39,18 @@ void Fixed_Window_Exponentiator::set_base(const BigInt& base) */ BigInt Fixed_Window_Exponentiator::execute() const { - const size_t exp_nibbles = (exp.bits() + window_bits - 1) / window_bits; + const size_t exp_nibbles = (m_exp.bits() + m_window_bits - 1) / m_window_bits; BigInt x = 1; for(size_t i = exp_nibbles; i > 0; --i) { - for(size_t j = 0; j != window_bits; ++j) - x = reducer.square(x); + for(size_t j = 0; j != m_window_bits; ++j) + x = m_reducer.square(x); - const u32bit nibble = exp.get_substring(window_bits*(i-1), window_bits); + const u32bit nibble = m_exp.get_substring(m_window_bits*(i-1), m_window_bits); - x = reducer.multiply(x, g[nibble]); + x = m_reducer.multiply(x, m_g[nibble]); } return x; } @@ -61,9 +61,9 @@ BigInt Fixed_Window_Exponentiator::execute() const Fixed_Window_Exponentiator::Fixed_Window_Exponentiator(const BigInt& n, Power_Mod::Usage_Hints hints) { - reducer = Modular_Reducer(n); - this->hints = hints; - window_bits = 0; + m_reducer = Modular_Reducer(n); + m_hints = hints; + m_window_bits = 0; } } |